I don’t really grok products like this.
If you have a fundamental disagreement with a platform, continuing to engage with it, even through a condom, is still perpetuating it. It’s maintaining that platform as still important and integral, and a place that others should continue to engage with. It’s telling advertisers that it’s still a place that’s worth their money to maintain a presence on. It stymies the momentum in shifting to an alternative; why put the effort into a new service if people are still seeing your posts?
It’s like pirating Windows instead of moving to a different OS. You’re still perpetuating the MS hegemony and telling software developers that Windows is the platform they need to develop for.
Depends on the story being told. Some stories are perfectly encapsulated in 90 minutes, some need 90 episodes.
That said, I find shows have both a lower initial commitment and a higher potential payoff, so I don’t watch many movies.